Your client has anaphylaxis listed as a penicillin allergy. Which antibiotic would be safe for your client to receive?
cephalexin (Keflex).
cefaclor (Ceclor).
piperacillin/tazobactam (Zosyn).
levofloxacin (Levaquin).
The Correct Answer is D
Levofloxacin (Levaquin) is a fluoroquinolone antibiotic that is not structurally related to penicillin and has a very low risk of cross-reactivity with penicillin.

Levofloxacin can be safely used in patients with penicillin allergy unless they have a history of hypersensitivity to other fluoroquinolones.
Choice A is wrong because cephalexin (Keflex) is a first-generation cephalosporin that has a similar side chain to some penicillins and may cause cross-reactivity in penicillin-allergic patients. The risk of cross-reactivity is higher for first- and second-generation cephalosporins than for third- and fourth-generation cephalosporins.
Choice B is wrong because cefaclor (Ceclor) is a second-generation cep
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The client on Digitalis has a low potassium level of 3.0 mEq/L, below the normal range of 3.5-5.0 mEq/L. Low potassium levels can increase the risk of digitalis toxicity, which can cause nausea, abdominal discomfort, visual changes, and cardiac arrhythmias.
The nurse would instruct the client to eat foods high in potassium, such as cantaloupe, to prevent or correct hypokalemia.

Choice A. Asparagus is wrong because asparagus is a low-potassium food that contains only 202 mg of potassium per cup.
Eating asparagus would not help to raise the client’s potassium level.
Choice C. Blackberries are wrong because blackberries are also a low-potassium food that contains only 233 mg of potassium per cup.
Eating blackberries would not help to raise the client’s potassium level.
Choice D. Cucumbers is wrong because cucumbers are a very low-potassium food that contains only 76 mg of potassium per cup.
Eating cucumbers would not help to raise the client’s potassium level and may even lower it further.
Correct Answer is C
Explanation
This is because responding inappropriately to questions can indicate that the client has difficulty hearing or understanding what is being asked. According to, hearing loss makes communication with the outside world difficult, and can result in new or exaggerated symptoms that are mistakenly attributed to cognitive decline.
Choice A is wrong because speaking in a low voice does not necessarily imply hearing loss. It could be due to other factors such as shyness, anxiety, or vocal cord problems.
Choice B is wrong because refusing to answer questions does not necessarily imply hearing loss.
It could be due to other factors such as lack of interest, defiance, or distrust.
Choice D is wrong because looking away from persons while speaking does not necessarily imply hearing loss.
It could be due to other factors such as cultural norms, eye contact avoidance, or distraction.
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